348 NORTH AMERICAN FLORA [Volume 25 



112. Polygala gracilis H.B.K. Nov. 

 Gen. &Sp. 5: 401. 1823. 

 Slender erect annual, 4 dm. high, glabrous; leaves all alternate, linear, 3-9 mm. long, 

 0.2-0.5 mm. wide, acuminate, cuspidate, thickish; racemes slightly loose, cylindric, the axis 

 9 cm. long or less, finely pubescent; pedicels 0.7 mm. long; flowers rosy; sepals broadly 

 ovate to narrowly oblong-lanceolate, 1.4 mm. long; wings narrowly spatulate-obovate, 2.6 

 mm. long, 1 mm. wide, truncate-rounded, at base long-cuneate, 3-nerved; keel 2.4 mm. long, 

 the crest of about 3 lobes on each side; capsule oblong-oval, 1.6 mm. long; seed 1.5 mm. 

 long, appressed-pubescent ; aril 0.6 mm. long, the 2 lobes appressed, linear-oblong. 



Type locality: Near village of Maypures, Colombia. 



Distribution: Chiapas; Nicaragua; Panama; also in Venezuela and Colombia. 



Illustrations: Mem. Soc. Phys. Geneve 31 (2) 2 : pi. 24, f. 8, 9; Contr. Gray Herb. 47: pi. 2,f. 76. 



113. Polygala verticillata L. Sp. PI. 706. 1753. 



Polygala paniculala verticillata Kuntze, Rev. Gen. 49. 1891. 



Sexilia verticillata Raf.; B. D. Jackson, Ind. Kew. 2: 894, as synonym. 1895. 



Erect single-stemmed glabrous annual, 6-33 cm. high, usually freely branched; leaves 

 in whorls of 4 or 5 to middle of stem or throughout, those of the branches scattered, linear to 

 narrowly elliptic, 5-25 mm. long, 0.7-5.5 mm. wide, acute to acuminate at each end, cuspidu- 

 late; peduncles 0.5-9 cm. long; racemes conic or cylindric-conic, acute to acuminate, dense 

 or loose, 2.2-4.5 mm. thick, the axis 3.5 cm. long or less; bracts subulate, glandular-denticu- 

 late, deciduous; pedicels 0.2-1 mm. long, rarely up to 2.2 mm. long; flowers whitish and green- 

 ish, rarely purplish-tinged; sepals ovate, ciliolate, 0.9-1.1 mm. long; wings obovate-oval, 

 1.6-2 mm. long, 1.1-2 mm. wide, broadly rounded, short-clawed, about 3-nerved; keel 1.2-1.5 

 mm. long, the crest on each side of a lamella and 1-2 lobes; capsule oval, 1.8-2.1 mm. long; 

 seed pilosulous, 1.5-1.8 mm. long; aril 0.7-1 mm. long, the 2 lobes linear-oblong or obovate. 



Type locality: Virginia. 



Distribution: Maine to Ontario and Minnesota, and southward to Florida and Texas. 



Illustrations: Pluk. Amalth. pi. 438, f. 4; Hill. Veg. Syst. 22: pi. 53, f. 3; Mem. Soc. Phys. 

 Geneve 31(2) ! : pi. 20, f. 17-18; Britt. & Brown, 111. Fl./. 2278; ed. 2./. 2700. 



Polygala verticillata ambigua (Nutt.) Wood, Class-Book. ed. 1861. 296. 1861. Polygala 

 ambigua Nutt. Gen. 2: 89. 1818. Polygala paniculata ambigua Kuntze, Rev. Gen. 49. 1891. 

 Usually taller, up to 4 dm. high : leaves mostly alternate, with only 1 or 2 whorls below; racemes often 

 longer and looser; flowers often purplish-tinged; wings often suborbicular and. distinctly 3-nerved, 

 usually equaling the capsule; capsule oval to suborbicular, 1.2-1.8 mm. long; seed 1.1-1.5 mm. 

 long; aril 0.4-0.8 mm. long. Maine and Vermont to Georgia, west to Indiana, Oklahoma, and 

 Louisiana. Illustrations: Britt. & Brown, 111. Fl. ed. 1. /. 2279; ed. 2. /. 2701. 



114. Polygala leptostachys Shuttl.; A. Gray, PI. 



Wright. 1: 41. 1852. 

 Very slender erect annual, 1.8-4.6 dm. high; leaves in 4—6 remote whorls of 3-5, or a few 

 uppermost sometimes scattered, much shorter than the internodes, linear to linear-filiform, 

 0.8-3 cm. long, 0.3-1 mm. wide, acuminate, cuspidate, revolute-margined ; peduncles 3-6.5 

 cm. long; racemes very slender, conic-cylindric, acuminate, dense or loose, 2.5-3.5 mm. thick, 

 the axis 1-8.5 cm. long; bracts lance-subulate, glandular-denticulate, deciduous; pedicels 0.2-0.4 

 mm. long; flowers whitish and greenish; sepals ovate to ovate-lanceolate, acute, ciliolate, 1-1.2 

 mm. long; wings obovate, 1.5-1.8 mm. long, 0.6-0.8 mm. wide, rounded, cuneate at base; 

 keel 1-1.5 mm. long, the crest of a lamella and 1-2 lobes on each side; capsule oblong-oval, 

 1.8-2.1 mm. long; seed obconic-cylindric, curved, glabrous, 1.5-1.7 mm. long; aril 1-1.1 mm. 

 long, the 2 lobes linear-elliptic, appressed. 



Type locality: Aspalaga, Florida. 



Distribution: Florida. 



Illustration: Mem. Soc. Phys. Geneve 31(2J 2 : pi. 20, f. 21. 



115. Polygala Wightiana Blake, Contr. Gray 

 Herb. 47: 87. 1916. 

 Slender erect or ascending annual, 1.3-3.6 dm. high; leaves in whorls of 4 or 5 to middle of 

 stem or above, much shorter than the internodes, the lower obovate, 3.5-7.5 mm. long, 1.7-2.5 



